19U QSFP SDR/DDR/QDR InfiniBand Switch Platform User’s Manual
Rev 1.7
Mellanox Technologies
37
5.5
Fan Modules
There are two fan modules on the switch, one leaf fan module, and one spine fan module. The leaf
fan module of the switch platform is located in the center of the front and includes seven fans. See
Figure 24 on
The spine fan module is located on the rear side panel at the top of the switch system. Each spine
fan module includes four fans.
When a fan module is removed the indicator light will reset.
5.5.1 Leaf Fan Module
The leaf fan module contains seven individual fans. Should a single fan fail the LED on the man-
agement module will light indicating the necessity to replace the fan module. The air flow through
the module is:
• outside air is brought through the fan module
• pushed through the leafs
• pushed out of the holes in the front of the leafs.
Air flow through the leafs is independent of the air flow through the spines.
5.5.1.1 Extracting the Leaf Fan Module
1. Unscrew the four captive screws that hold the leaf fan module to the chassis. See Figure 24.
2. Slowly pull out the fan module while holding both its upper and lower handles.
Operation without either fan unit should not exceed one minute.
Caution: If there is a possibility that either fan module will be out of
the chassis for more than one minute shut down the switch before
removing the fan module.
